The far-right Georgia congresswoman Marjorie Taylor Greene is ungovernable and should be known as “Moscow Marjorie”, said a former Republican colleague in the US House, accusing Greene of “getting her talking points from the Kremlin” when opposing new federal aid for Ukraine.

“My experience with Marjorie is people have talked to her about not filing articles of impeachment on President Biden before he was sworn into office, not filing articles of impeachment that were groundless based on other individuals in the Biden administration,” Ken Buck, a Colorado rightwinger who left Congress last month, told CNN.